Brachial Plexus Surgery: Clinical Analysis of Ten Cases
... patients presenting to a trauma facility. Males are affected more than females with a median age of 34-year-old because of the association of such injuries with violent trauma and contact sports. 80% of patients with severe traumatic brachial plexopathy had multiple traumas to the head and skeletal ...
... patients presenting to a trauma facility. Males are affected more than females with a median age of 34-year-old because of the association of such injuries with violent trauma and contact sports. 80% of patients with severe traumatic brachial plexopathy had multiple traumas to the head and skeletal ...
CEREBRAL ACTIVATION DURING THERMAL
... spinoreticular projections to various brainstem nuclei and the limbic structures. [33] From the limbic system the nociceptive stimulus is conducted to both right and left cerebral cortices, expressing most likely, a bilateral activation. A word of caution is in place here because there are several a ...
... spinoreticular projections to various brainstem nuclei and the limbic structures. [33] From the limbic system the nociceptive stimulus is conducted to both right and left cerebral cortices, expressing most likely, a bilateral activation. A word of caution is in place here because there are several a ...
Sensory Adaptation and Short Term Plasticity as Bayesian
... strategy to adapt to presynaptic fluctuations can reduce variability in postsynaptic responses. To give a concrete example, we simulate a presynaptic neuron whose excitability is fluctuating on multiple timescales (Fig 2A). The response of the presynaptic neuron is then the total excitability multip ...
... strategy to adapt to presynaptic fluctuations can reduce variability in postsynaptic responses. To give a concrete example, we simulate a presynaptic neuron whose excitability is fluctuating on multiple timescales (Fig 2A). The response of the presynaptic neuron is then the total excitability multip ...
Genetically identified spinal interneurons integrating tactile afferents
... cord and are directed to the sensory areas of the brain via brain stem nuclei and the thalamus. At the cortical level, tactile information is processed, organized, and interpreted, which in turn, is used to guide behaviors by adjusting descending motor commands. In parallel to the perception of tact ...
... cord and are directed to the sensory areas of the brain via brain stem nuclei and the thalamus. At the cortical level, tactile information is processed, organized, and interpreted, which in turn, is used to guide behaviors by adjusting descending motor commands. In parallel to the perception of tact ...
Role of the Human Anterior Cingulate Cortex in the Control of
... alphabetic sequence ( A-“B”, L-“M”). In the antistimulus task, they were required to respond in the opposite way by saying “M” when they heard the letter A and “B” for the letter L. The average rate of stimulus presentation was the same for all tasks. The interstimulus interval was held constant ( 1 ...
... alphabetic sequence ( A-“B”, L-“M”). In the antistimulus task, they were required to respond in the opposite way by saying “M” when they heard the letter A and “B” for the letter L. The average rate of stimulus presentation was the same for all tasks. The interstimulus interval was held constant ( 1 ...
Document
... it to the nervous system. • Nervous system responds to stimuli. – Pupils shrink when too much light enters the eyes. – Goose bumps when cold air touches skin. ...
... it to the nervous system. • Nervous system responds to stimuli. – Pupils shrink when too much light enters the eyes. – Goose bumps when cold air touches skin. ...
Autometallographic Tracing of Bismuth in Human Brain Autopsies
... AMG grains shown in the sections developed around bismuth ions. Data proving that the catalytic bismuth compounds were bismuth sulfide/selenide clusters have been published previously (15). It has been demonstrated that bismuth can penetrate the blood barrier (4, 5, 12, 14, 15, 18), and bismuth has ...
... AMG grains shown in the sections developed around bismuth ions. Data proving that the catalytic bismuth compounds were bismuth sulfide/selenide clusters have been published previously (15). It has been demonstrated that bismuth can penetrate the blood barrier (4, 5, 12, 14, 15, 18), and bismuth has ...
Seminar Chronic disorders of consciousness
... awareness of themselves and their environment. The Aspen Neurobehavioral Conference expert panel formulated consensus-based diagnostic criteria for such patients whose clinical syndrome they termed the minimally conscious state.40 They emphasised the qualitative difference between patients in minimal ...
... awareness of themselves and their environment. The Aspen Neurobehavioral Conference expert panel formulated consensus-based diagnostic criteria for such patients whose clinical syndrome they termed the minimally conscious state.40 They emphasised the qualitative difference between patients in minimal ...
Motor Areas of the Medial Wall: A Review of Their Location and
... different regions of the primary motor cortex (Holsapple and Strick, 1991) and the parietal lobe (see Dum and Strick, 1993 for references). In addition, the CMAv (and CMAr), but not the CMAd is interconnected with the prefrontal cortex (Lu et al., 1994; see also Bates and Goldman-Rakic, 1993). These ...
... different regions of the primary motor cortex (Holsapple and Strick, 1991) and the parietal lobe (see Dum and Strick, 1993 for references). In addition, the CMAv (and CMAr), but not the CMAd is interconnected with the prefrontal cortex (Lu et al., 1994; see also Bates and Goldman-Rakic, 1993). These ...
Contextual modulation of primary visual cortex by auditory signals
... patterns can be subtle and are often not detected with conventional univariate analyses that rely on averaging. We blindfolded fMRI subjects and either played complex sounds or instructed subjects to imagine them. Using MVPA, we trained a classification algorithm to learn the relationship between pa ...
... patterns can be subtle and are often not detected with conventional univariate analyses that rely on averaging. We blindfolded fMRI subjects and either played complex sounds or instructed subjects to imagine them. Using MVPA, we trained a classification algorithm to learn the relationship between pa ...
Brainstem
... project to the nucleus cuneatus - primary afferents below T6 ascend in the fasciculus gracilis and project to the nucleus gracilis - axons of 2nd neurons in the posterior column nuclei course ventromedially (as the internal arcuate fibers) and cross to the opposite side (sensory decussation) above t ...
... project to the nucleus cuneatus - primary afferents below T6 ascend in the fasciculus gracilis and project to the nucleus gracilis - axons of 2nd neurons in the posterior column nuclei course ventromedially (as the internal arcuate fibers) and cross to the opposite side (sensory decussation) above t ...
The relationship between irritable bowel syndrome to clinical manifestations
... been reported in IBS patients [12-14]. Indeed, peripheral administration of CRH improved colonic function and visceral perception in response to gut stimulation in IBS patients [13]. In addition, previous studies showed that the IBS is associated with significantly lower vagal tone and increased sym ...
... been reported in IBS patients [12-14]. Indeed, peripheral administration of CRH improved colonic function and visceral perception in response to gut stimulation in IBS patients [13]. In addition, previous studies showed that the IBS is associated with significantly lower vagal tone and increased sym ...
Mismatch Negativity: Different Water in the Same River
... change in some feature of the deviant stimulus from a preceding stimulus. This change occurs by itself if the stimulus is continuously on and just momentarily changes. For example, a continuous tone may occasionally change its frequency (and then revert back to the standard frequency). This change i ...
... change in some feature of the deviant stimulus from a preceding stimulus. This change occurs by itself if the stimulus is continuously on and just momentarily changes. For example, a continuous tone may occasionally change its frequency (and then revert back to the standard frequency). This change i ...
Congenital Atresia of the External Ear and Tinnitus: A New Syndrome
... Abstract: Congenital atresia of the external ears and severe tinnitus has been reported by two patients to be contralateral to the atretic ear. The use of the nuclear medicine imaging technique of single-photon emission computed tomography (SPECT) of brain has demonstrated hypoperfusion in brain are ...
... Abstract: Congenital atresia of the external ears and severe tinnitus has been reported by two patients to be contralateral to the atretic ear. The use of the nuclear medicine imaging technique of single-photon emission computed tomography (SPECT) of brain has demonstrated hypoperfusion in brain are ...
Emotional and Behavioral Correlates of Mediodorsal Thalamic
... and Alexander, 1973; Fahy et al., 1993) and avoidance learning in rabbits (Kubota and Gabriel, 1995); however, no studies thus far have related neuronal activity to the anatomical and functional diversity of the MD (see above). The present study was designed to investigate emotional and motor functi ...
... and Alexander, 1973; Fahy et al., 1993) and avoidance learning in rabbits (Kubota and Gabriel, 1995); however, no studies thus far have related neuronal activity to the anatomical and functional diversity of the MD (see above). The present study was designed to investigate emotional and motor functi ...
gross_neuroanatomy-1
... surface of the brain. Unlike other sulci that delineate lobes, TO is much more variable between individuals and it is not easy to identify • The functional overlap between posterior temporal and occipital cortices is also reflected by the lack of one or more sulci that divide the temporal from the ...
... surface of the brain. Unlike other sulci that delineate lobes, TO is much more variable between individuals and it is not easy to identify • The functional overlap between posterior temporal and occipital cortices is also reflected by the lack of one or more sulci that divide the temporal from the ...
No Slide Title
... • fibers of the posterior tract travel up the ipsilateral side of the spinal cord • fibers of the anterior tract cross over and travel up the contralateral side – cross back in the brainstem to enter the ipsilateral side of the cerebellum ...
... • fibers of the posterior tract travel up the ipsilateral side of the spinal cord • fibers of the anterior tract cross over and travel up the contralateral side – cross back in the brainstem to enter the ipsilateral side of the cerebellum ...
chapt13_lecture
... • fibers of the posterior tract travel up the ipsilateral side of the spinal cord • fibers of the anterior tract cross over and travel up the contralateral side – cross back in the brainstem to enter the ipsilateral side of the cerebellum ...
... • fibers of the posterior tract travel up the ipsilateral side of the spinal cord • fibers of the anterior tract cross over and travel up the contralateral side – cross back in the brainstem to enter the ipsilateral side of the cerebellum ...
Complex Motion Perception and its Deficits
... bias for expanding motion suggesting that this area plays an important role in visually-guided navigation, since forward motion through the world produces a significantly higher proportion of expanding than contracting patterns of optical flow on the retina. The MSTd neurones have the necessary char ...
... bias for expanding motion suggesting that this area plays an important role in visually-guided navigation, since forward motion through the world produces a significantly higher proportion of expanding than contracting patterns of optical flow on the retina. The MSTd neurones have the necessary char ...
Preserving information in neural transmission - CNL
... arising from more than one ganglion cell, as evidenced by superimposed EPSP waveforms [Sincich et al. (2007), their supplemental Fig. 2; see also Weyand (2007)] and absence of a refractory period. Such cells were not analyzed further because it was impossible to assign individual EPSPs to a particul ...
... arising from more than one ganglion cell, as evidenced by superimposed EPSP waveforms [Sincich et al. (2007), their supplemental Fig. 2; see also Weyand (2007)] and absence of a refractory period. Such cells were not analyzed further because it was impossible to assign individual EPSPs to a particul ...
Warm pleasant feelings in the brain
... of cool stimuli, but affective value (pleasantness and unpleasantness) ratings were not obtained, and warm stimuli were not used (Craig et al., 2000). In another PET study, activations to warmth were found in the orbitofrontal cortex, but no potential correlations with pleasantness ratings were inve ...
... of cool stimuli, but affective value (pleasantness and unpleasantness) ratings were not obtained, and warm stimuli were not used (Craig et al., 2000). In another PET study, activations to warmth were found in the orbitofrontal cortex, but no potential correlations with pleasantness ratings were inve ...
Allochiria
Allochiria (from the Greek meaning ""other hand"") is a neurological disorder in which the patient responds to stimuli presented to one side of their body as if the stimuli had been presented at the opposite side. It is associated with spatial transpositions, usually symmetrical, of stimuli from one side of the body (or of the space) to the opposite one. Thus a touch to the left arm will be reported as a touch to the right arm, which is also known as somatosensory allochiria. If the auditory or visual senses are affected, sounds (a person's voice for instance) will be reported as being heard on the opposite side to that on which they occur and objects presented visually will be reported as having been presented on the opposite side. Often patients may express allochiria in their drawing while copying an image. Allochiria often co-occurs with unilateral neglect and, like hemispatial neglect, the disorder arises commonly from damage to the right parietal lobe.Allochiria is often confused with alloesthesia, also known as false allochiria. True allochiria is a symptom of dyschiria and unilateral neglect. Dyschiria is a disorder in the localization of sensation due to various degrees of dissociation and cause impairment in one side causing the inability to tell which side of the body was touched.